454 Vortec value
 

I have a 1997 Vortec out of a 3500 Dually but it has close to 200k still runs strong, fully dressed with hydro brake. I want to sell this motor but not sure what it is worth.

i bought one with 72k miles was a 97 long block for 700

If your saying it has all the acessories on it, 500-750. You could get more if you find someone in need of one at the right time